<?php session_start(); ?>
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento sin título</title>
</head>

<body>

<form id="form1" name="form1" method="post" action="">
  <p>Mediciones  </p>
  <p>
    <input type="submit" name="btnRandMedi" id="btnRandMedi" value="generarMed" />
  </p>
  <p>instru
    <label for="intrument"></label>
    <input name="intrument" type="text" id="intrument" readonly="readonly" value="1" />
  </p>
  <p>fecha
    <label for="fecha"></label>
    <input name="fecha" type="text" id="fecha" readonly="readonly" />
  </p>
  <p>valor
    <input name="textfield" type="text" id="textfield" readonly="readonly" />
    <label for="valor"></label>
  </p>
  <p>
    <input type="submit" name="guardar" id="guardar" value="guardar" />
  </p>
  <p>&nbsp;</p>
</form>
</body>
</html>